tree 6129b15ee8219343244c3dc8efa1a9ea7b51531d
parent ed42c879b7b1463aa7a15fdbbeb2b1914d60be8a
author Miklos Szeredi <[EMAIL PROTECTED]> Fri, 08 Jul 2005 07:57:27 -0700
committer Linus Torvalds <[EMAIL PROTECTED]> Fri, 08 Jul 2005 08:23:51 -0700
[PATCH] namespace.c: fix mnt_namespace zeroing for expired mounts
This patch clears mnt_namespace in an expired mount.
If mnt_namespace is not cleared, it's possible to attach a new mount to the
already detached mount, because check_mnt() can return true.
The effect is a resource leak, since the resulting tree will never be
freed.
Signed-off-by: Miklos Szeredi <[EMAIL PROTECTED]>
Acked-by: Christoph Hellwig <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
fs/namespace.c | 1 +
1 files changed, 1 insertion(+)
diff --git a/fs/namespace.c b/fs/namespace.c
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -847,6 +847,7 @@ static void expire_mount(struct vfsmount
/* delete from the namespace */
list_del_init(&mnt->mnt_list);
+ mnt->mnt_namespace = NULL;
detach_mnt(mnt, &old_nd);
spin_unlock(&vfsmount_lock);
path_release(&old_nd);
-
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